Math

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Plz help me to solve
In how many years will the money deposited in a bank double itself,if the rate of intrest 12 1/2% per annum?

  • Math -

    if compound interest,

    (1+.125)^x = 2
    x = 5.88 years

    6 years to obtain the interest.

  • Math -

    Bt its ans is 8year

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